TY - JOUR
T1 - Hydrothermal preparation of diatomaceous earth combined with calcium silicate hydrate gels
AU - Maeda, Hirotaka
AU - Ishida, Emile Hideki
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/1/30
Y1 - 2011/1/30
N2 - A novel composite for the removal of color in waste water was prepared by subjecting slurries consisting diatomaceous earth and slaked lime to a hydrothermal reaction at 180. °C. Subsequently, calcium silicate hydrate gels covered the surface of diatomaceous earth due to the reaction between the amorphous silica of diatomaceous earth and slaked lime. The formation of calcium silicate hydrate gels led to an increase in the specific surface area. The composites showed higher methylene blue adsorption capacity compared with diatomaceous earth. The improved adsorption capacity of the composites depended on the amount of the calcium silicate hydrate gels and their silicate anion chain-lengths.
AB - A novel composite for the removal of color in waste water was prepared by subjecting slurries consisting diatomaceous earth and slaked lime to a hydrothermal reaction at 180. °C. Subsequently, calcium silicate hydrate gels covered the surface of diatomaceous earth due to the reaction between the amorphous silica of diatomaceous earth and slaked lime. The formation of calcium silicate hydrate gels led to an increase in the specific surface area. The composites showed higher methylene blue adsorption capacity compared with diatomaceous earth. The improved adsorption capacity of the composites depended on the amount of the calcium silicate hydrate gels and their silicate anion chain-lengths.
KW - Calcium silicate hydrate gel
KW - Color removal
KW - Composite
KW - Diatomaceous earth
KW - Hydrothermal reaction
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U2 - 10.1016/j.jhazmat.2010.09.099
DO - 10.1016/j.jhazmat.2010.09.099
M3 - Article
C2 - 20970253
AN - SCOPUS:78649936380
VL - 185
SP - 858
EP - 861
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
SN - 0304-3894
IS - 2-3
ER -